Google has pulled the plug on its shopping search engine in China, three months after it did the same with its music download service in the country.

The U.S. Web giant said the service is closed effective Dec. 12. It decided to do so in order to better optimize resources, according to a blog post Wednesday.

The shopping search service in China was intended to be a bridge between consumers, and retailers and traders, but the level of impact did not meet the company's expectations, Google said. The company will instead focus on mobile advertising with AdMob, mobile and desktop display advertising, and export-oriented search advertising, which will help Chinese companies thrive on the Internet.

Google remains committed to helping Chinese businessmen and traders use Google Shopping to reach consumers in other markets around the world, it added.

Its shopping search service, which was launched in 2009, competed with domestic rivals such as etao.com by Alibaba, Bloomberg reported. Wallace Cheung, a Hong Kong-based analyst at Credit Suisse, said in the report Google ought to focus on non-search business in China since it "posed no competition to Alibaba from day one".

Other services like AdMob and mobile and desktop display are "good businesses [because these are] without any concern about their government relationship", Cheung added.